CVE intelligence and bounded remediation

CVE-2024-4638 — Moxa Oncell G3470A-Lte-Eu-T Firmware security vulnerability

High CVSS 8.8

OnCell G3470A-LTE Series firmware versions v1.7.7 and prior have been identified as vulnerable due to a lack of neutralized inputs in the web key upload function. An attacker could modify the intended commands sent to target functions, which could cause malicious users to execute unauthorized commands.

Severity
High
CVSS
8.8 (3.1)
Published
2024-06-25
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-77

Affected products

  • moxa / oncell_g3470a-lte-eu-t_firmware
  • moxa / oncell_g3470a-lte-eu_firmware
  • moxa / oncell_g3470a-lte-us_firmware
  • moxa / oncell_g3470a-lte-us-t_firmware

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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